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Finding the Fourth Proportional to 22,145.99, 33,218.87 and 6,949.71

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Solution

The fourth proportional to 22,145.99, 33,218.87 and 6,949.71 is: 10,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.99 : 33,218.87 = 6,949.71 : x
  2. Step 2: Convert to fraction form
    22,145.99/33,218.87 = 6,949.71/x
  3. Step 3: Cross multiply
    22,145.99x = 33,218.87 × 6,949.71
  4. Step 4: Simplify right side
    22,145.99x = 230,861,478.28
  5. Step 5: Solve for x
    x = 230,861,478.28/22,145.99
  6. Step 6: Final answer
    x = 10,424.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.